/* 图表操作提示样式 */
.chart-guide {
    position: absolute;
    bottom: 40px;
    right: 20px;
    background-color: rgba(255, 255, 255, 0.95);
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.1);
    padding: 15px;
    max-width: 350px;
    z-index: 10;
  }
  
  .guide-content {
    position: relative;
  }
  
  .close-icon {
    position: absolute;
    top: -8px;
    right: -8px;
    cursor: pointer;
    background: #f0f0f0;
    border-radius: 50%;
    padding: 2px;
    color: #666;
  }
  
  .close-icon:hover {
    color: #c62828;
    background: #f9f9f9;
  }
  
  .chart-guide h4 {
    margin-top: 0;
    margin-bottom: 10px;
    color: #333;
    font-size: 16px;
  }
  
  .chart-guide ul {
    list-style: none;
    padding-left: 5px;
    margin: 0;
  }
  
  .chart-guide li {
    display: flex;
    align-items: center;
    margin-bottom: 8px;
    color: #666;
    font-size: 14px;
  }
  
  .chart-guide .el-icon {
    margin-right: 8px;
    color: #c62828;
  }
  
  /* 淡入淡出动画 */
  .fade-enter-active,
  .fade-leave-active {
    transition: opacity 0.5s ease;
  }
  
  .fade-enter-from,
  .fade-leave-to {
    opacity: 0;
  }
  
  /* 确保趋势图容器是相对定位，以便提示框的绝对定位正常工作 */
  .trend-container {
    position: relative;
  }